I decided to give this power meter a try, since it's currently the cheapest PM spider for 3-bolt mount, and I happened to have a compatible crankset laying around. One thing I find a little disappointing is that that there are only three color stickers in the box, despite the fact that there are more colors depicted in the description, so options to personalize the crank are limited (though it looks ok without any sticker, but luckily my bike is pink, so I used the pink-ish one). Other than that I had no problems installing it on my Zrace RX crankset, also worth noting is that it fits T47 BB, which was an issue with Magene P505 PM I bought with this crank (and had to buy P515 crankset for that bike, but that's another story). I was able to use my Garmin 1040 to calibrate it, so there's no need to install some wonky apps. I did one test ride, everything seemed fine, but one issue I noticed was the lag, when I stopped pedaling both cadence and power readings were dropping gradually for about 2 seconds before reaching 0. Could be because of low temperature (it was below freezing), but still never happened on my other bike which has Inpeak PM, nor with Magene P515 I had before (though I never used that one in winter). As to precision, I can't directly compare it against any other PM, so we have to wait for GPLama test (I'm also very curious how it actually performs). So far I give this 4/5 rating from my experience, it's super cheap and it seems to work, I wasn't expecting anything more!
